Quick answer: For central HVAC, ecobee (Premium or Enhanced, ~$229–299 CAD) has the strongest energy-monitoring feature set via its Home IQ reports, the data pick for central-heating and cooling households. For electric baseboard heat, Mysa V2 (~$130–160 CAD) has built-in energy monitoring, and Sinopé (~$99–129 CAD) offers per-zone kWh reporting through its Neviweb app, the most granular baseboard energy data available.

Why Energy Monitoring Matters

The thermostat doesn’t save energy by itself. Visibility changes behaviour. Most households have only a vague sense of how much their heating and cooling costs month to month, because a utility bill is a single lagging number that arrives weeks after the usage happened and bundles heating in with everything else on the meter.

A thermostat that shows you usage trends (more granular, more immediate, tied directly to your heating and cooling equipment) gives you something to react to: did that week of unusually high runtime line up with a cold snap, a schedule change, or a door left open? You adjust setpoint habits and schedules in response to that kind of feedback more than you would from “smart” scheduling on its own.

Best for Central HVAC: ecobee (Home IQ)

Price: ~$229–299 CAD | C-wire required: No (PEK included) | Warranty: 3 years

ecobee’s Home IQ feature is the most developed energy-reporting tool among central-HVAC smart thermostats. It breaks down system runtime by category (heating, cooling, fan), shows how your usage compares to similar homes and to local weather patterns, and flags unusual runtime spikes that might indicate something worth investigating (a stuck damper, a door left open, an aging system running longer than it used to).

Combined with SmartSensors (Premium model), Home IQ can also show room-level comfort data alongside runtime, which helps connect “why did the system run so much this week” to an actual cause rather than just a number. ecobee doesn’t charge a subscription for these reports, which is a real point in its favour versus some competing ecosystems that gate detailed reporting behind a paid tier.

Full review: ecobee Smart Thermostat Review

Best for Baseboard/Electric Heat: Mysa V2 and Sinopé

For homes heating with electric baseboards rather than central HVAC, ecobee isn’t an option. Two line-voltage thermostats built energy monitoring into their core feature set instead.

Mysa V2 (~$130–160 CAD) includes built-in energy monitoring as a core feature rather than an add-on. It tracks actual electricity draw per thermostat/zone and reports it through the Mysa app, alongside a humidity sensor. Since baseboard heating is billed directly on your electricity meter (unlike gas furnace heat, which is a separate utility), this kind of direct kWh visibility maps more cleanly to your actual bill than central-HVAC runtime data does.

Sinopé (~$99–129 CAD for Wi-Fi models) goes further for households with multiple thermostats: its Neviweb app aggregates per-zone kWh reporting across every Sinopé thermostat in the home, giving you a room-by-room energy breakdown rather than just a whole-home total. For a home with several baseboard zones (common in older Canadian houses with electric heat), this is the most granular energy-monitoring setup available among smart thermostats covered on this site. Quebec homeowners also get this data alongside Hilo demand-response integration on Zigbee models.

Full reviews: Mysa V2 Smart Thermostat Review and Sinopé Smart Thermostat Review

What the Reports Actually Show vs. What They Don’t

Thermostat-based energy monitoring has real limits, and marketing sometimes implies more precision than these devices deliver:

  • What they show well: usage trends over time, relative comparisons (this week vs. last week, this month vs. a similar month last year), and, for baseboard thermostats with built-in monitoring, a reasonably accurate estimate of actual kWh consumed by that specific heating zone.
  • What they don’t replace: a smart electricity meter or dedicated whole-home energy monitor. Central-HVAC thermostats like ecobee report runtime (how long the system ran), not measured electrical draw. That’s useful for spotting trends, but it’s no substitute for your utility’s actual billing data.
  • Estimates, not utility-grade metering: even baseboard thermostats with direct energy monitoring (Mysa, Sinopé) give you a practical estimate for your own reference, not a certified metering-grade reading. Don’t rely on thermostat-reported kWh figures for anything where precision matters (e.g., disputing a bill); cross-check against your utility’s own data.
  • The value is behavioural, not diagnostic: use these reports to notice patterns and adjust habits, not to diagnose equipment problems with certainty. Treat an unusual reading as a prompt to look further, nothing more.

For the bigger-picture question of whether smart thermostats save meaningful money at all, see: Do Smart Thermostats Really Save Money? (Data-Backed)

Energy-monitoring picks: ecobee Premium/Enhanced (Home IQ), Mysa V2 (built-in monitoring), Sinopé (per-zone kWh via Neviweb): reporting type, subscription cost, system type, price

Frequently Asked Questions

Which smart thermostat has the best energy monitoring?
For central HVAC, ecobee’s Home IQ reports are the most developed, showing runtime by category with no subscription fee. For baseboard heating, Mysa V2 includes built-in kWh monitoring, and Sinopé’s Neviweb app offers per-zone kWh reporting across multiple thermostats, the most granular baseboard option.

Does ecobee’s energy monitoring cost extra?
No. Home IQ reports are included with ecobee thermostats at no additional subscription cost, unlike some competing ecosystems that gate detailed energy reporting behind a paid tier.

Can a smart thermostat replace my utility’s smart meter?
No. Central-HVAC thermostats report system runtime, not measured electrical draw, and even baseboard thermostats with direct energy monitoring provide a practical estimate rather than certified metering-grade data. Use thermostat energy reports to spot trends and adjust habits, not as a substitute for your utility’s actual billing data.

Does Google Nest or Honeywell offer energy monitoring reports?
Google Nest offers some usage history and a Nest Energy History feature; Honeywell’s reporting is more limited than ecobee’s or the baseboard-specific options here. Neither matches ecobee’s Home IQ depth for central HVAC or Mysa/Sinopé’s direct kWh tracking for baseboard heat.

How accurate is Mysa’s or Sinopé’s energy monitoring?
Both provide a reasonably useful estimate of actual electricity draw for the specific heating zone they control, since baseboard heating is measured directly rather than inferred from runtime. Treat the figures as a practical estimate for your own reference rather than a certified reading, and cross-check against your utility bill for anything where exact precision matters.

Will energy monitoring actually lower my heating bill?
The thermostat doesn’t reduce usage on its own. The value is in the visibility it provides: households that look at the reports and adjust schedules or setpoints in response tend to see savings, while households that ignore the reports see no benefit from the feature existing.